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20121010

Edit 3 …
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Unstable Means Radioactive

Some demonstrations...

Review: Protons and Neutrons

  • Protons determine element name;
  • Neutrons control element stability;
  • Isotopes have different masses.

Exercise: Isotope Chart

A paper-based exercise for partners to complete together.

Benchmark ERg: Isotopes

If time permits...
ERg_Isotopes.png